New instance annotation @Core.changed for delta messages #201
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HeikoTheissen
requested changes
Sep 16, 2022
HeikoTheissen
approved these changes
Sep 16, 2022
|
I would recommend uppercasing the first letter so it becomes "Changed". This will keep it consistent with the case conventions used in all other Core terms (e.g. ContentID). |
ralfhandl
commented
Sep 22, 2022
ralfhandl
commented
Sep 22, 2022
|
I think the only two states we can state are "it previously existed" and "i don't know if it already existed". I like limiting what the payload can claim to those two states. We could have an enum-valued "@Core.PreviousState:" with a value of "Existing" ("Existed?") and (optionally) "unknown". |
HeikoTheissen
approved these changes
Sep 23, 2022
HeikoTheissen
requested changes
Oct 4, 2022
Co-authored-by: Heiko Theißen <[email protected]>
HeikoTheissen
approved these changes
Oct 4, 2022
ralfhandl
commented
Oct 4, 2023
| The recipient of a delta message MAY use the instance annotation for optimization only; ultimately any received added/changed entity MUST be processed as an UPSERT.</String> | ||
| </Annotation> | ||
| </Term> | ||
| <EnumType Name="PreviousStateType"> |
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Switch to String with AllowedValues
ralfhandl
commented
Oct 4, 2023
| <EnumType Name="PreviousStateType"> | ||
| <Annotation Term="Core.Description" String="Previous state of a resource whose changes are described by an [added/changed entity in a delta message](https://docs.oasis-open.org/odata/odata-json-format/v4.01/odata-json-format-v4.01.html#sec_AddedChangedEntity) or a [nested entity in a deep-update request](https://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-protocol.html#sec_UpdateRelatedEntitiesWhenUpdatinganE)" /> | ||
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| <Member Name="Absent" Value="2"> |
…or-delta-messages
ralfhandl
changed the title
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Part of oasis-tcs/odata-specs#300